使用Apache poi 导出excel含有柱状图

使用poi 在excel中使用chart绘制出柱状图

需要先在maven中将依赖引入

        <dependency>
            <groupId>org.apache.poigroupId>
            <artifactId>poiartifactId>
           <version>4.1.2version>
        dependency>
        <dependency>
            <groupId>org.apache.poigroupId>
            <artifactId>poi-ooxmlartifactId>
            <version>4.1.2version>
        dependency>
        <dependency>
            <groupId>org.apache.poigroupId>
            <artifactId>poi-ooxml-schemasartifactId>
            <version>4.1.2version>
        dependency>
        <dependency>
            <groupId>org.apache.poigroupId>
            <artifactId>openxml4jartifactId>
            <version>1.0-betaversion>
        dependency>

下面就是代码实例

package com.huasu.resAndDev.excelTools;

import com.huasu.resAndDev.commonTools.ConstantKit;
import com.huasu.resAndDev.commonTools.ResponseResult;
import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.Row;
import org.apache.poi.ss.util.CellRangeAddress;
import org.apache.poi.xddf.usermodel.PresetColor;
import org.apache.poi.xddf.usermodel.XDDFColor;
import org.apache.poi.xddf.usermodel.XDDFSolidFillProperties;
import org.apache.poi.xddf.usermodel.chart.*;
import org.apache.poi.xssf.usermodel.*;

import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.UUID;

/**
 * ClassName: ExcelChartUtils 

 * Description: 导出excel中绘制图表

 * date: 2022/11/17 11:39

 *
 * @author DELL

 * @since JDK 1.8
 */
public class ExcelChartUtils {

    public static void main(String[] args) throws IOException {
        ExcelChartUtils  excelChartUtils=new ExcelChartUtils();
        excelChartUtils.exportLineDiagram();
    }
    public ResponseResult exportLineDiagram() throws IOException {
        XSSFWorkbook wb = new XSSFWorkbook();
        String sheetName = "Sheet1";
        FileOutputStream fileOut = null;
        try {
            XSSFSheet sheet = wb.createSheet(sheetName);
            // 创建一个画布
            XSSFDrawing drawing = sheet.createDrawingPatriarch();
            // 前四个默认0，[0,5]：从0列5行开始;[7,26]:到7列26行结束
            // 默认宽度(14-8)*12
            XSSFClientAnchor anchor = drawing.createAnchor(0, 0, 0, 0, 0, 5, 7, 26);
            // 创建一个chart对象
            XSSFChart chart = drawing.createChart(anchor);
            // 标题
            chart.setTitleText("不良品明细统计");
            // 标题覆盖
            chart.setTitleOverlay(false);

            // 图例位置
            XDDFChartLegend legend = chart.getOrAddLegend();
            legend.setPosition(LegendPosition.TOP);

            // 分类轴标(X轴),标题位置
            XDDFCategoryAxis bottomAxis = chart.createCategoryAxis(AxisPosition.BOTTOM);
        //    bottomAxis.setTitle("国家");
            // 值(Y轴)轴,标题位置
            XDDFValueAxis leftAxis = chart.createValueAxis(AxisPosition.LEFT);
          //  leftAxis.setTitle("面积大小");

            // CellRangeAddress(起始行号，终止行号， 起始列号，终止列号）
            // 分类轴标(X轴)数据，单元格范围位置[0, 0]到[0, 6]
            //XDDFDataSource countries = XDDFDataSourcesFactory.fromStringCellRange(sheet, new CellRangeAddress(0, 0, 0, 6));//从指定表格中的位置上获取对应数据
             XDDFCategoryDataSource countries = XDDFDataSourcesFactory.fromArray(new String[] {"严重性能不良","外观问题","包装问题","瑕疵","人为破坏"});
            // 数据1，单元格范围位置[1, 0]到[1, 6]
           // XDDFNumericalDataSource area = XDDFDataSourcesFactory.fromNumericCellRange(sheet, new CellRangeAddress(1, 1, 0, 6));
             XDDFNumericalDataSource<Integer> area = XDDFDataSourcesFactory.fromArray(new Integer[] {17098242,9984670,9826675,9596961,8514877});

            // bar：条形图，
            XDDFBarChartData bar = (XDDFBarChartData) chart.createData(ChartTypes.BAR, bottomAxis, leftAxis);

            leftAxis.setCrossBetween(AxisCrossBetween.BETWEEN);
            // 设置为可变颜色
            bar.setVaryColors(false);// 如果需要设置成自己想要的颜色，这里可变颜色要设置成false
            // 条形图方向，纵向/横向：纵向
            bar.setBarDirection(BarDirection.COL);

            // 图表加载数据，条形图1
            XDDFBarChartData.Series series1 = (XDDFBarChartData.Series) bar.addSeries(countries, area);
            // 条形图例标题
            series1.setTitle("不良品数量", null);
            XDDFSolidFillProperties fill = new XDDFSolidFillProperties(XDDFColor.from(PresetColor.BLUE));
            // 条形图，填充颜色
            series1.setFillProperties(fill);

            // 绘制
            chart.plot(bar);
            // CTBarSer ser = chart.getCTChart().getPlotArea().getBarChartArray(0).getSerArray(0);
            // CTLegend legend2 = chart.getCTChartSpace().getChart().getLegend();//更详细的图例设置

            // 打印图表的xml
            System.out.println(chart.getCTChart());

            // 将输出写入excel文件
           // String filename = "排行榜前七的国家.xlsx";
            //  out = new FileOutputStream(getAbsoluteFile(filename));
            String filename = encodingFilename();
            fileOut = new FileOutputStream("E:\\QMSDocument\\exportFile"+File.separator+filename);
            wb.write(fileOut);
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            wb.close();
            if (fileOut != null) {
                fileOut.close();
            }
        }

      return ResponseResult.success();
    }
    /**
     * 编码文件名
     */
    public String encodingFilename()
    {
        String filename = UUID.randomUUID().toString() + ".xlsx";
        return filename;
    }

    /**
     * 获取下载路径
     *
     * @param filename 文件名称
     */
    public  String getAbsoluteFile(String filename)
    {
        String downloadPath = ConstantKit.baseDir+ File.separator+ConstantKit.exportFile+File.separator+filename;
        File desc = new File(downloadPath);
        if (!desc.getParentFile().exists())
        {
            desc.getParentFile().mkdirs();
        }
        return downloadPath;
    }
}

运行效果如下